A tunable hybrid Brillouin-Raman fiber laser

摘要

A tunable hybrid Brillouin-Raman fiber laser system with simple structure is proposed. With a tunable ECL laser whose power is 3dBm used as Brillouin pump, a fiber Raman laser whose maximum output is 1200 mW used as Raman pump, and 25km DSF fiber used as both Brillouin and Raman gain media, an Brillouin-Raman fiber laser with tunable range more than 40 (1530-1570 nm) nm was demonstrated. Multi-frequency Stokes lines at an average of 10GHz frequency spacing was observed across the tuning range. When the wavelength of Brillouin pump is in the range of 1550nm to 1565 nm, more than 10 stokes lines were observed. The Brillouin fiber laser has the potential of simpler configuration, wider tunable range and more wavelengths when compared with Brillouin-Erbium fiber laser.